CN105065616A - Hydraulic coupler - Google Patents

Hydraulic coupler Download PDF

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Publication number
CN105065616A
CN105065616A CN201510419052.7A CN201510419052A CN105065616A CN 105065616 A CN105065616 A CN 105065616A CN 201510419052 A CN201510419052 A CN 201510419052A CN 105065616 A CN105065616 A CN 105065616A
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CN
China
Prior art keywords
hydraulic
motor
oil
gear
pipeline
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Pending
Application number
CN201510419052.7A
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Chinese (zh)
Inventor
钱雪松
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Changzhou Campus of Hohai University
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Changzhou Campus of Hohai University
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Priority to CN201510419052.7A priority Critical patent/CN105065616A/en
Publication of CN105065616A publication Critical patent/CN105065616A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H47/00Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/02Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38Control of exclusively fluid gearing
    • F16H61/40Control of exclusively fluid gearing hydrostatic
    • F16H61/44Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38Control of exclusively fluid gearing
    • F16H61/40Control of exclusively fluid gearing hydrostatic
    • F16H61/46Automatic regulation in accordance with output requirements
    • F16H61/462Automatic regulation in accordance with output requirements for achieving a target speed ratio
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38Control of exclusively fluid gearing
    • F16H61/40Control of exclusively fluid gearing hydrostatic
    • F16H61/46Automatic regulation in accordance with output requirements
    • F16H61/478Automatic regulation in accordance with output requirements for preventing overload, e.g. high pressure limitation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H47/00Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/02Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
    • F16H2047/025Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the fluid gearing comprising a plurality of pumps or motors

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Pumps (AREA)

Abstract

The invention discloses a hydraulic coupler. The hydraulic coupler comprises a first hydraulic oil pump, a second hydraulic oil pump, a first gear, a second gear, a third gear, a hydraulic coupler input shaft, a first hydraulic motor, a second hydraulic motor, a fourth gear, a fifth gear, a sixth gear, a hydraulic coupler output shaft, a proportional overflow valve, an oil tank, a cooler, a filter and the like. The hydraulic coupler disclosed by the invention has the characteristics of being provided with load-limiting security protection, and being high in working efficiency, small in size, adequately adjustable in starting performance, capable of realizing stepless speed regulation, wider in speed regulation range, and the like; and the hydraulic coupler disclosed by the invention is provided with the cooler and the filter, and is capable of maintaining reasonable working oil temperature and cleanliness. The hydraulic coupler disclosed by the invention can be applied to starting processes of large steam turbines, power generators and fans, realizes the functions of stable starting, limiting security protection, speed regulation, and the like of working processes of the steam turbines, the power generators and the fans, and has a wider application prospect.

Description

A kind of hydraulic coupler
Technical field
The present invention relates to the Coupler used in the start-up course of power plant, be specifically related to a kind of hydraulic coupler, belong to electric and field of electromechanical technology.
Background technique
At present, in the start-up course of steam turbine and blower fan, widely use fluid coupling, realize the smooth starting of working procedure.But due to fluid coupling exist inefficiency, volume large, there is the shortcomings, particularly high-power fluid coupling such as speed discrepancy, Impeller Design and difficulty of processing are large between prime mover and working machine, its shortcoming is more outstanding.In order to overcome the above shortcoming of fluid coupling, the application proposes, a kind of hydraulic coupler, primarily of hydraulic-pressure pump, oil hydraulic motor, proportional pressure control valve, the compositions such as the first speed probe and the second speed probe, hydraulic-pressure pump on the one hand, oil hydraulic motor, the hydraulic element such as proportional pressure control valve are the product of ripe sizing, stable performance, purchase cost is low, on the other hand, utilize hydraulic-pressure pump, oil hydraulic motor, the hydraulic coupler of the composition such as proportional pressure control valve, there is higher working efficiency, startability is fully adjustable, stepless speed regulation can be realized, the characteristic that speed adjustable range is wider, simultaneously owing to having installed the first speed probe and the second speed probe respectively at the input shaft of hydraulic coupler and output shaft, collection two speed probes can be passed through, carry out analysing and processing, the controlling curve of design proportion relief valve, more accurately control the start-up course of working machine.So the hydraulic coupler that the application proposes has application prospect widely.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic coupler.
The technical solution used in the present invention is: a kind of hydraulic coupler, comprise the first hydraulic-pressure pump (1), second hydraulic-pressure pump (2), first gear (1-4), second gear (2-4), 3rd gear (3), hydraulic coupler input shaft (4), first oil hydraulic motor (5), second oil hydraulic motor (6), 4th gear (5-4), 5th gear (6-4), 6th gear (7), hydraulic coupler output shaft (8), proportional pressure control valve (9), fuel tank (10), first speed probe (12), second speed probe (13), return tube (11) and connecting pipeline, described fuel tank (10) comprises fuel tank right sideboard (10-1) and fuel tank left sideboard (10-2), and described connecting pipeline comprises the first pipeline (11-1), the second pipeline (11-2), the 3rd pipeline (11-3), the 4th pipeline (11-4), the 5th pipeline (11-5), the 6th pipeline (11-6), the 7th pipeline (11-7), the 8th pipeline (11-8), the 9th pipeline (11-9), the tenth pipeline (11-10).
Described first hydraulic-pressure pump (1) comprises the first oil pump input shaft (1-1), first oil pump oil outlet (1-3), first oil pump suction mouth (1-6), first oil pump leakage hole (1-7), described first hydraulic-pressure pump (1) is installed on fuel tank (10) inner side, and be arranged on fuel tank right sideboard (10-1) by the first oil pump mounting screw (1-5), the first oil pump end face seal pad (1-2) is provided with between the end face of the first hydraulic-pressure pump (1) and fuel tank right sideboard (10-1), play seal action, prevent oil liquid leakage, described first oil pump input shaft (1-1) is provided with the first gear (1-4), described first oil pump suction mouth (1-6) is by return tube (11), first pipeline (11-1) is communicated with the work fluid in fuel tank (10), described first oil pump leakage hole (1-7) is communicated with the work fluid in the second oil pump leakage hole (2-7) and fuel tank (10) by the 4th pipeline (11-4), described first oil pump oil outlet (1-3) is connected with the second oil pump oil outlet (2-3) by the second pipeline (11-2), and be connected with the 5th pipeline (11-5),
Described second hydraulic-pressure pump (2) comprises the second oil pump input shaft (2-1), second oil pump oil outlet (2-3), second oil pump suction mouth (2-6), second oil pump leakage hole (2-7), described second hydraulic-pressure pump (2) is installed on fuel tank (10) inner side, and be arranged on fuel tank right sideboard (10-1) by the second oil pump mounting screw (2-5), the second oil pump end face seal pad (2-2) is provided with between the end face of the second hydraulic-pressure pump (2) and fuel tank right sideboard (10-1), play seal action, prevent oil liquid leakage, described second oil pump input shaft (2-1) is provided with the second gear (2-4), described second oil pump suction mouth (2-6) is communicated with the work fluid in fuel tank (10) by the 3rd pipeline (11-3), described second oil pump leakage hole (2-7) is communicated with the work fluid in the first oil pump leakage hole (1-7) and fuel tank (10) by the 4th pipeline (11-4), described second oil pump oil outlet (2-3) is connected with the first oil pump oil outlet (1-3) by the second pipeline (11-2), and be connected with the 5th pipeline (11-5),
The left part of described hydraulic coupler input shaft (4) is provided with the 3rd gear (3), the right part of hydraulic coupler input shaft (4) can be connected with prime mover by coupling, described 3rd gear (3) is meshed with the first gear (1-4) and the second gear (2-4) respectively, during prime mover work, hydraulic coupler input shaft (4) and the 3rd gear (3) can be driven to rotate together by coupling, 3rd gear (3) drives the first gear (1-4) of being meshed with it and the second gear (2-4) to rotate together, first gear (1-4) and the second gear (2-4) drive the first hydraulic-pressure pump (1) and the second hydraulic-pressure pump (2) to enter working state respectively,
Described first oil hydraulic motor (5) comprises the first motor output shaft (5-1), first motor filler opening (5-3), first motor return opening (5-6), first motor leakage hole (5-7), described first oil hydraulic motor (5) is installed on fuel tank (10) inner side, and be arranged on fuel tank left sideboard (10-2) by the first motor mounting screw (5-5), the first motor end face sealing gasket (5-2) is provided with between the end face of the first oil hydraulic motor (5) and fuel tank left sideboard (10-2), play seal action, prevent oil liquid leakage, described first motor output shaft (5-1) is provided with the 4th gear (5-4), described first motor return opening (5-6) is by return tube (11), first pipeline (11-1) is communicated with the work fluid in fuel tank (10), described first motor leakage hole (5-7) is communicated with the work fluid in the second motor leakage hole (6-7) and fuel tank (10) by the 9th pipeline (11-9), described first motor filler opening (5-6) is connected with the second motor filler opening (6-6) by the 8th pipeline (11-8), and be connected with the 5th pipeline (11-5),
Described second oil hydraulic motor (6) comprises the second motor output shaft (6-1), second motor filler opening (6-3), second motor return opening (6-6), second motor leakage hole (6-7), described second oil hydraulic motor (6) is installed on fuel tank (10) inner side, and be arranged on fuel tank left sideboard (10-2) by the second motor mounting screw (6-5), the second motor end face sealing gasket (6-2) is provided with between the end face of the second oil hydraulic motor (6) and fuel tank left sideboard (10-2), play seal action, prevent oil liquid leakage, described second motor output shaft (6-1) is provided with the 5th gear (6-4), described second motor return opening (6-6) is communicated with the work fluid in fuel tank (10) by the tenth pipeline (11-10), described second motor leakage hole (6-7) is communicated with the work fluid in the first motor leakage hole (5-7) and fuel tank (10) by the 9th pipeline (11-9), described second motor filler opening (6-6) is connected with the first motor filler opening (5-6) by the 8th pipeline (11-8), and be connected with the 5th pipeline (11-5), the right part of described hydraulic coupler output shaft (8) is provided with the 6th gear (7), the left part of hydraulic coupler output shaft (8) can be connected with working machine by coupling, and described 6th gear (7) is meshed with the 4th gear (5-4) and the 5th gear (6-4) respectively.
When the first oil hydraulic motor (5) and the second oil hydraulic motor (6) work, the 6th gear (7) and hydraulic coupler output shaft (8) can be driven to produce respectively by the 4th gear (5-4) be meshed with the 6th gear (7) and the 5th gear (6-4) to rotate, hydraulic coupler output shaft (8) can drive working machine to enter working state by coupling.
The filler opening of described proportional pressure control valve (9) is connected with the 5th pipeline (11-5) by the 6th pipeline (11-6), and be connected with the first motor filler opening (5-3), the second motor filler opening (6-3) with the first oil pump oil outlet (1-6), the second oil pump oil outlet (2-6) respectively by the 5th pipeline (11-5), the working pressure of hydraulic control Coupler, the oil outlet of described proportional pressure control valve (9) is communicated with the work fluid in fuel tank (10) by the 7th pipeline (11-7); Described fuel tank (10) internal storage has work fluid, the fuel tank right sideboard (10-1) of fuel tank (10) offers through hole, first oil pump input shaft (1-1) and the second oil pump input shaft (2-1) pass from the through hole fuel tank right sideboard (10-1) respectively, the fuel tank left sideboard (10-2) of fuel tank (10) offers through hole, and the first motor output shaft (5-1) and the second motor output shaft (6-1) pass from the through hole fuel tank left sideboard (10-2) respectively.
Described first speed probe (12) is installed on hydraulic coupler input shaft (4) place, can detect the rotating speed of hydraulic coupler input shaft (4) in real time, is equivalent to the output speed detecting prime mover in real time; Described second speed probe (13) is installed on hydraulic coupler output shaft (8) place, can detect the rotating speed of hydraulic coupler output shaft (8) in real time, is equivalent to the input speed of real-time testing machine.
When prime mover works, hydraulic coupler input shaft (4) and the 3rd gear (3) is driven to rotate together by coupling, 3rd gear (3) drives the first gear (1-4) of being meshed with it and the second gear (2-4) to rotate together, first gear (1-4) and the second gear (2-4) drive the first hydraulic-pressure pump (1) and the second hydraulic-pressure pump (2) to enter working state respectively, first hydraulic-pressure pump (1) is by the first oil pump suction mouth (1-6), first pipeline (11-1) is absorption work fluid from fuel tank (10), second hydraulic-pressure pump (2) is by the second oil pump suction mouth (2-6), 3rd pipeline (11-3) absorption work fluid from fuel tank (10), work fluid is discharged from the first oil pump oil outlet (1-3) and the second oil pump oil outlet (2-3) respectively, and by the second pipeline (11-2), 5th pipeline (11-5), 8th pipeline (11-8) enters the first motor filler opening (5-3) and the second motor filler opening (6-3) respectively, drive the first oil hydraulic motor (5) and the second oil hydraulic motor (6) work, first oil hydraulic motor (5) and the second oil hydraulic motor (6) can drive the 6th gear (7) and hydraulic coupler output shaft (8) to produce respectively by the 4th gear (5-4) be meshed with the 6th gear (7) and the 5th gear (6-4) and rotate, hydraulic coupler output shaft (8) can drive working machine to enter working state by coupling.The Leakage Energy of the first hydraulic-pressure pump (1) and the second hydraulic-pressure pump (2) respectively by the first oil pump leakage hole (1-7) and the second oil pump leakage hole (2-7), and flows back in fuel tank (10) through the 4th pipeline (11-4); The Leakage Energy of the first oil hydraulic motor (5) and the second oil hydraulic motor (6) respectively by the first motor leakage hole (5-7) and the second motor leakage hole (6-7), and flows back in fuel tank (10) through the 9th pipeline (11-9).
When hydraulic coupler is started working, the working machine be connected with hydraulic coupler output shaft (8) has larger inertia load and friction load, in order to enable working machine smooth starting, reduce startup impact and the starting load of prime mover, the output speed of prime mover and the input speed of the real-time testing machine of the second speed probe (13) is detected in real time by the first speed probe (12), and analysing and processing is carried out to test data, comparative example relief valve (9) accurate control signal reasonable in design, corresponding to the cracking pressure curve of proportional pressure control valve (9), and progressively increase the control signal of proportional pressure control valve (9), operating oil pressure corresponding to the first oil hydraulic motor (5) and the second oil hydraulic motor (6) steadily increases, the output torque of the first motor output shaft (5-1) and the second motor output shaft (6-1) progressively increases, and pass to the 6th gear (7) and hydraulic coupler output shaft (8) by the 4th gear (5-4) and the 5th gear (6-4), hydraulic coupler output shaft (8) can drive working machine to enter working state by coupling, steadily realize working machine start-up course, the cracking pressure of final control ratio relief valve (9) reach with slightly larger than oil pressure corresponding to working machine nominal torque, ensure in working machine rated load ranges on the one hand, proportional pressure control valve (9) can not produce overflow, the work fluid that first hydraulic-pressure pump (1) and the second hydraulic-pressure pump (2) are exported fully enters in the first oil hydraulic motor (5) and the second oil hydraulic motor (6), improve the working efficiency of hydraulic coupler, on the other hand, when job opportunity is to fault state, when there is overload, the inlet pressure of proportional pressure control valve (9) raises, when being greater than the cracking pressure of proportional pressure control valve (9), proportional pressure control valve (9) produces overflow, limit the operating oil pressure of the first oil hydraulic motor (5) and the second oil hydraulic motor (6), the operating load of final restriction working machine, prevent hydraulic coupler and prime mover overload, play safety protection effect.So, by in the first hydraulic-pressure pump (1), second hydraulic-pressure pump (2), first oil hydraulic motor (5), on the path of the second oil hydraulic motor (6), Set scale relief valve (9) can realize the smooth starting of working machine, the output speed of prime mover and the input speed of the real-time testing machine of the second speed probe (13) is detected in real time by the first speed probe (12), and analysing and processing is carried out to test data, comparative example relief valve (9) accurate control signal reasonable in design, corresponding to the cracking pressure curve of proportional pressure control valve (9), very easily can control the start-up course of working machine, simultaneously, in hydraulic coupler after usage ratio relief valve (9), the overload protection function of hydraulic coupler can be realized easily.
Described first hydraulic-pressure pump (1) and the second hydraulic-pressure pump (2) can be metering pump or variable displacement pump, when the first hydraulic-pressure pump (1) and the second hydraulic-pressure pump (2) are for variable displacement pump, the speed-regulating function of hydraulic coupler can be realized, because variable displacement pump speed governing is volumetric speed control, hydraulic coupler is made to have higher speed efficiency.The hydraulic-pressure pump quantity used in hydraulic coupler can be more than Liang Tai and two.
Described first oil hydraulic motor (5) and the second oil hydraulic motor (6) can be fixed displacement motor or variable displacement motor, when the first oil hydraulic motor (5) and the second oil hydraulic motor (6) are for variable displacement motor, the speed-regulating function of hydraulic coupler can be realized, because variable displacement motor speed governing is volumetric speed control, hydraulic coupler is made to have higher speed efficiency.The oil hydraulic motor quantity used in hydraulic coupler can be more than Liang Tai and two.
Described proportional pressure control valve (9) also can be manual tune relief valve.
When hydraulic coupler uses variable displacement pump or variable displacement motor, hydraulic coupler possesses speed-regulating function, and hydraulic coupler has higher speed efficiency and wider speed adjustable range simultaneously.
The invention has the beneficial effects as follows:
The present invention is by hydraulic-pressure pump, oil hydraulic motor, proportional pressure control valve, the compositions such as the first speed probe and the second speed probe, hydraulic-pressure pump on the one hand, oil hydraulic motor, the hydraulic element such as proportional pressure control valve are the product of ripe sizing, stable performance, purchase cost is low, on the other hand, utilize hydraulic-pressure pump, oil hydraulic motor, the hydraulic coupler of the composition such as proportional pressure control valve, there is higher working efficiency, volume is little, restriction safety protection, startability is fully adjustable, stepless speed regulation can be realized, the characteristics such as speed adjustable range is wider, simultaneously owing to having installed the first speed probe and the second speed probe respectively at the input shaft of hydraulic coupler and output shaft, collection two speed probes can be passed through, carry out analysing and processing, the controlling curve of design proportion relief valve, more accurately control the start-up course of working machine.So the hydraulic coupler that the present invention proposes has application prospect widely.
Accompanying drawing explanation
The embodiment provided below in conjunction with accompanying drawing is described in more detail the present invention.
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of hydraulic coupler, comprises the first hydraulic-pressure pump 1, second hydraulic-pressure pump 2, first gear 1-4, the second gear 2-4, the 3rd gear 3, hydraulic coupler input shaft 4, first oil hydraulic motor 5, second oil hydraulic motor 6, the 4th gear 5-4, the 5th gear 6-4, the 6th gear 7, hydraulic coupler output shaft 8, proportional pressure control valve 9, fuel tank 10, first speed probe 12, second speed probe 13, return tube 11 and connecting pipeline; Fuel tank 10 comprises fuel tank right sideboard 10-1 and fuel tank left sideboard 10-2, and connecting pipeline comprises the first pipeline 11-1, the second pipeline 11-2, the 3rd pipeline 11-3, the 4th pipeline 11-4, the 5th pipeline 11-5, the 6th pipeline 11-6, the 7th pipeline 11-7, the 8th pipeline 11-8, the 9th pipeline 11-9, the tenth pipeline 11-10.
First hydraulic-pressure pump 1 comprises the first oil pump input shaft 1-1, first oil pump oil outlet 1-3, first oil pump suction mouth 1-6, first oil pump leakage hole 1-7, first hydraulic-pressure pump 1 is installed on inside fuel tank 10, and be arranged on fuel tank right sideboard 10-1 by the first oil pump mounting screw 1-5, the first oil pump end face seal pad 1-2 is provided with between the end face of the first hydraulic-pressure pump 1 and fuel tank right sideboard 10-1, play seal action, prevent oil liquid leakage, first oil pump input shaft 1-1 is provided with the first gear 1-4, first oil pump suction mouth 1-6 is by return tube 11, first pipeline 11-1 is communicated with the work fluid in fuel tank 10, first oil pump leakage hole 1-7 is communicated with the work fluid in the second oil pump leakage hole 2-7 and fuel tank 10 by the 4th pipeline 11-4, first oil pump oil outlet 1-3 is connected with the second oil pump oil outlet 2-3 by the second pipeline 11-2, and be connected with the 5th pipeline 11-5.
Second hydraulic-pressure pump 2 comprises the second oil pump input shaft 2-1, second oil pump oil outlet 2-3, second oil pump suction mouth 2-6, second oil pump leakage hole 2-7, second hydraulic-pressure pump 2 is installed on inside fuel tank 10, and be arranged on fuel tank right sideboard 10-1 by the second oil pump mounting screw 2-5, the second oil pump end face seal pad 2-2 is provided with between the end face of the second hydraulic-pressure pump 2 and fuel tank right sideboard 10-1, play seal action, prevent oil liquid leakage, described second oil pump input shaft 2-1 is provided with the second gear 2-4, second oil pump suction mouth 2-6 is communicated with the work fluid in fuel tank 10 by the 3rd pipeline 11-3, second oil pump leakage hole 2-7 is communicated with the work fluid in the first oil pump leakage hole 1-7 and fuel tank 10 by the 4th pipeline 11-4, second oil pump oil outlet 2-3 is connected with the first oil pump oil outlet 1-3 by the second pipeline 11-2, and be connected with the 5th pipeline 11-5.
The left part of hydraulic coupler input shaft 4 is provided with the 3rd gear 3, the right part of hydraulic coupler input shaft 4 can be connected with prime mover by coupling, 3rd gear 3 is meshed with the first gear 1-4 and the second gear 2-4 respectively, during prime mover work, hydraulic coupler input shaft 4 and the 3rd gear 3 can be driven to rotate together by coupling, 3rd gear 3 drives the first gear 1-4 be meshed with it to rotate together with the second gear 2-4, and the first gear 1-4 and the second gear 2-4 drives the first hydraulic-pressure pump 1 and the second hydraulic-pressure pump 2 to enter working state respectively.
First oil hydraulic motor 5 comprises the first motor output shaft 5-1, first motor filler opening 5-3, first motor return opening 5-6, first motor leakage hole 5-7, first oil hydraulic motor 5 is installed on inside fuel tank 10, and be arranged on fuel tank left sideboard 10-2 by the first motor mounting screw 5-5, the first motor end face sealing gasket 5-2 is provided with between the end face of the first oil hydraulic motor 5 and fuel tank left sideboard 10-2, play seal action, prevent oil liquid leakage, first motor output shaft 5-1 is provided with the 4th gear 5-4, first motor return opening 5-6 is by return tube 11, first pipeline 11-1 is communicated with the work fluid in fuel tank 10, first motor leakage hole 5-7 is communicated with the work fluid in the second motor leakage hole 6-7 and fuel tank 10 by the 9th pipeline 11-9, first motor filler opening 5-6 is connected with the second motor filler opening 6-6 by the 8th pipeline 11-8, and be connected with the 5th pipeline 11-5.
Second oil hydraulic motor 6 comprises the second motor output shaft 6-1, second motor filler opening 6-3, second motor return opening 6-6, second motor leakage hole 6-7, second oil hydraulic motor 6 is installed on inside fuel tank 10, and be arranged on fuel tank left sideboard 10-2 by the second motor mounting screw 6-5, the second motor end face sealing gasket 6-2 is provided with between the end face of the second oil hydraulic motor 6 and fuel tank left sideboard 10-2, play seal action, prevent oil liquid leakage, second motor output shaft 6-1 is provided with the 5th gear 6-4, second motor return opening 6-6 is communicated with the work fluid in fuel tank 10 by the tenth pipeline 11-10, second motor leakage hole 6-7 is communicated with the work fluid in the first motor leakage hole 5-7 and fuel tank 10 by the 9th pipeline 11-9, second motor filler opening 6-6 is connected with the first motor filler opening 5-6 by the 8th pipeline 11-8, and be connected with the 5th pipeline 11-5, the right part of hydraulic coupler output shaft 8 is provided with the 6th gear 7, and the left part of hydraulic coupler output shaft 8 can be connected with working machine by coupling, and the 6th gear 7 is meshed with the 4th gear 5-4 and the 5th gear 6-4 respectively.
When first oil hydraulic motor 5 and the second oil hydraulic motor 6 work, the 6th gear 7 and hydraulic coupler output shaft 8 can be driven to produce respectively by the 4th gear 5-4 be meshed with the 6th gear 7 and the 5th gear 6-4 to rotate, hydraulic coupler output shaft 8 can drive working machine to enter working state by coupling.
The filler opening of proportional pressure control valve 9 is connected with the 5th pipeline 11-5 by the 6th pipeline 11-6, and be connected with the first motor filler opening 5-3, the second motor filler opening 6-3 with the first oil pump oil outlet 1-6, the second oil pump oil outlet 2-6 respectively by the 5th pipeline 11-5, the working pressure of hydraulic control Coupler, the oil outlet of proportional pressure control valve 9 is communicated with the work fluid in fuel tank 10 by the 7th pipeline 11-7; Fuel tank 10 internal storage has work fluid, the fuel tank right sideboard 10-1 of fuel tank 10 offers through hole, first oil pump input shaft 1-1 and the second oil pump input shaft 2-1 passes from the through hole fuel tank right sideboard 10-1 respectively, the fuel tank left sideboard 10-2 of fuel tank 10 offers through hole, and the first motor output shaft 5-1 and the second motor output shaft 6-1 passes from the through hole fuel tank left sideboard 10-2 respectively.
First speed probe 12 is installed on hydraulic coupler input shaft 4 place, can detect the rotating speed of hydraulic coupler input shaft 4 in real time, is equivalent to the output speed detecting prime mover in real time; Second speed probe 13 is installed on hydraulic coupler output shaft 8 place, can detect the rotating speed of hydraulic coupler output shaft 8 in real time, is equivalent to the input speed of real-time testing machine.
When prime mover works, hydraulic coupler input shaft 4 and the 3rd gear 3 is driven to rotate together by coupling, 3rd gear 3 drives the first gear 1-4 be meshed with it to rotate together with the second gear 2-4, first gear 1-4 and the second gear 2-4 drives the first hydraulic-pressure pump 1 and the second hydraulic-pressure pump 2 to enter working state respectively, first hydraulic-pressure pump 1 is by the first oil pump suction mouth 1-6, first pipeline 11-1 draws work fluid from fuel tank 10, second hydraulic-pressure pump 2 is by the second oil pump suction mouth 2-6, 3rd pipeline 11-3 draws work fluid from fuel tank 10, work fluid is discharged from the first oil pump oil outlet 1-3 and the second oil pump oil outlet 2-3 respectively, and by the second pipeline 11-2, 5th pipeline 11-5, 8th pipeline 11-8 enters the first motor filler opening 5-3 and the second motor filler opening 6-3 respectively, the first oil hydraulic motor 5 and the second oil hydraulic motor 6 is driven to work, first oil hydraulic motor 5 and the second oil hydraulic motor 6 can drive the 6th gear 7 and hydraulic coupler output shaft 8 to produce respectively by the 4th gear 5-4 be meshed with the 6th gear 7 and the 5th gear 6-4 and rotate, hydraulic coupler output shaft 8 can drive working machine to enter working state by coupling.The Leakage Energy of the first hydraulic-pressure pump 1 and the second hydraulic-pressure pump 2 respectively by the first oil pump leakage hole 1-7 and the second oil pump leakage hole 2-7, and flows back in fuel tank 10 through the 4th pipeline 11-4; The Leakage Energy of the first oil hydraulic motor 5 and the second oil hydraulic motor 6 respectively by the first motor leakage hole 5-7 and the second motor leakage hole 6-7, and flows back in fuel tank 10 through the 9th pipeline 11-9.
When hydraulic coupler is started working, the working machine be connected with hydraulic coupler output shaft 8 has larger inertia load and friction load, in order to enable working machine smooth starting, reduce startup impact and the starting load of prime mover, the output speed of prime mover and the input speed of the real-time testing machine of the second speed probe 13 is detected in real time by the first speed probe (12), and analysing and processing is carried out to test data, comparative example relief valve 9 accurate control signal reasonable in design, corresponding to the cracking pressure curve of proportional pressure control valve 9, and progressively increase the control signal of proportional pressure control valve 9, operating oil pressure corresponding to the first oil hydraulic motor 5 and the second oil hydraulic motor 6 steadily increases, the output torque of the first motor output shaft 5-1 and the second motor output shaft 6-1 progressively increases, and pass to the 6th gear 7 and hydraulic coupler output shaft 8 by the 4th gear 5-4 and the 5th gear 6-4, hydraulic coupler output shaft 8 can drive working machine to enter working state by coupling, steadily realize working machine start-up course, the cracking pressure of final control ratio relief valve 9 reach with slightly larger than oil pressure corresponding to working machine nominal torque, ensure in working machine rated load ranges on the one hand, proportional pressure control valve 9 can not produce overflow, the work fluid that first hydraulic-pressure pump 1 and the second hydraulic-pressure pump 2 are exported fully enters in the first oil hydraulic motor 5 and the second oil hydraulic motor 6, improve the working efficiency of hydraulic coupler, on the other hand, when job opportunity is to fault state, when there is overload, the inlet pressure of proportional pressure control valve 9 raises, when being greater than the cracking pressure of proportional pressure control valve 9, proportional pressure control valve 9 produces overflow, limit the operating oil pressure of the first oil hydraulic motor 5 and the second oil hydraulic motor 6, the operating load of final restriction working machine, prevent hydraulic coupler and prime mover overload, play safety protection effect.So, by at the first hydraulic-pressure pump 1, second hydraulic-pressure pump 2, first oil hydraulic motor 5, on the path of the second oil hydraulic motor 6, Set scale relief valve 9 can realize the smooth starting of working machine, the output speed of prime mover and the input speed of the real-time testing machine of the second speed probe 13 is detected in real time by the first speed probe 12, and analysing and processing is carried out to test data, comparative example relief valve 9 accurate control signal reasonable in design, corresponding to the cracking pressure curve of proportional pressure control valve 9, very easily can control the start-up course of working machine, simultaneously, in hydraulic coupler after usage ratio relief valve 9, the overload protection function of hydraulic coupler can be realized easily.
Preferably, first hydraulic-pressure pump 1 and the second hydraulic-pressure pump 2 can be metering pump or variable displacement pump, when the first hydraulic-pressure pump 1 and the second hydraulic-pressure pump 2 are variable displacement pump, the speed-regulating function of hydraulic coupler can be realized, because variable displacement pump speed governing is volumetric speed control, hydraulic coupler is made to have higher speed efficiency.The hydraulic-pressure pump quantity used in hydraulic coupler can be more than Liang Tai and two.
Preferably, first oil hydraulic motor 5 and the second oil hydraulic motor 6 can be fixed displacement motor or variable displacement motor, when the first oil hydraulic motor 5 and the second oil hydraulic motor 6 are variable displacement motor, the speed-regulating function of hydraulic coupler can be realized, because variable displacement motor speed governing is volumetric speed control, hydraulic coupler is made to have higher speed efficiency.The oil hydraulic motor quantity used in hydraulic coupler can be more than Liang Tai and two.
Preferably, proportional pressure control valve 9 also can be manual tune relief valve.
When hydraulic coupler uses variable displacement pump or variable displacement motor, hydraulic coupler possesses speed-regulating function, and hydraulic coupler has higher speed efficiency and wider speed adjustable range simultaneously.
The invention has the beneficial effects as follows:
The present invention is by hydraulic-pressure pump, oil hydraulic motor, proportional pressure control valve, the compositions such as the first speed probe and the second speed probe, hydraulic-pressure pump on the one hand, oil hydraulic motor, the hydraulic element such as proportional pressure control valve are the product of ripe sizing, stable performance, purchase cost is low, on the other hand, utilize hydraulic-pressure pump, oil hydraulic motor, the hydraulic coupler of the composition such as proportional pressure control valve, there is higher working efficiency, volume is little, restriction safety protection, startability is fully adjustable, stepless speed regulation can be realized, the characteristics such as speed adjustable range is wider, simultaneously owing to having installed the first speed probe and the second speed probe respectively at the input shaft of hydraulic coupler and output shaft, collection two speed probes can be passed through, carry out analysing and processing, the controlling curve of design proportion relief valve, more accurately control the start-up course of working machine.So the hydraulic coupler that the present invention proposes has application prospect widely.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (4)

1. a hydraulic coupler, it is characterized in that: comprise the first hydraulic-pressure pump (1), second hydraulic-pressure pump (2), first gear (1-4), second gear (2-4), 3rd gear (3), hydraulic coupler input shaft (4), first oil hydraulic motor (5), second oil hydraulic motor (6), 4th gear (5-4), 5th gear (6-4), 6th gear (7), hydraulic coupler output shaft (8), proportional pressure control valve (9), fuel tank (10), first speed probe (12), second speed probe (13), return tube (11) and connecting pipeline, described fuel tank (10) comprises fuel tank right sideboard (10-1) and fuel tank left sideboard (10-2), and described connecting pipeline comprises the first pipeline (11-1), the second pipeline (11-2), the 3rd pipeline (11-3), the 4th pipeline (11-4), the 5th pipeline (11-5), the 6th pipeline (11-6), the 7th pipeline (11-7), the 8th pipeline (11-8), the 9th pipeline (11-9), the tenth pipeline (11-10),
Described first hydraulic-pressure pump (1) comprises the first oil pump input shaft (1-1), first oil pump oil outlet (1-3), first oil pump suction mouth (1-6), first oil pump leakage hole (1-7), described first hydraulic-pressure pump (1) is installed on fuel tank (10) inner side, and be arranged on fuel tank right sideboard (10-1) by the first oil pump mounting screw (1-5), the first oil pump end face seal pad (1-2) is provided with between the end face of the first hydraulic-pressure pump (1) and fuel tank right sideboard (10-1), play seal action, prevent oil liquid leakage, described first oil pump input shaft (1-1) is provided with the first gear (1-4), described first oil pump suction mouth (1-6) is by return tube (11), first pipeline (11-1) is communicated with the work fluid in fuel tank (10), described first oil pump leakage hole (1-7) is communicated with the work fluid in the second oil pump leakage hole (2-7) and fuel tank (10) by the 4th pipeline (11-4), described first oil pump oil outlet (1-3) is connected with the second oil pump oil outlet (2-3) by the second pipeline (11-2), and be connected with the 5th pipeline (11-5),
Described second hydraulic-pressure pump (2) comprises the second oil pump input shaft (2-1), second oil pump oil outlet (2-3), second oil pump suction mouth (2-6), second oil pump leakage hole (2-7), described second hydraulic-pressure pump (2) is installed on fuel tank (10) inner side, and be arranged on fuel tank right sideboard (10-1) by the second oil pump mounting screw (2-5), the second oil pump end face seal pad (2-2) is provided with between the end face of the second hydraulic-pressure pump (2) and fuel tank right sideboard (10-1), play seal action, prevent oil liquid leakage, described second oil pump input shaft (2-1) is provided with the second gear (2-4), described second oil pump suction mouth (2-6) is communicated with the work fluid in fuel tank (10) by the 3rd pipeline (11-3), described second oil pump leakage hole (2-7) is communicated with the work fluid in the first oil pump leakage hole (1-7) and fuel tank (10) by the 4th pipeline (11-4), described second oil pump oil outlet (2-3) is connected with the first oil pump oil outlet (1-3) by the second pipeline (11-2), and be connected with the 5th pipeline (11-5),
The left part of described hydraulic coupler input shaft (4) is provided with the 3rd gear (3), the right part of hydraulic coupler input shaft (4) is connected with prime mover by coupling, described 3rd gear (3) is meshed with the first gear (1-4) and the second gear (2-4) respectively, during prime mover work, hydraulic coupler input shaft (4) and the 3rd gear (3) is driven to rotate together by coupling, 3rd gear (3) drives the first gear (1-4) of being meshed with it and the second gear (2-4) to rotate together, first gear (1-4) and the second gear (2-4) drive the first hydraulic-pressure pump (1) and the second hydraulic-pressure pump (2) to enter working state respectively,
Described first oil hydraulic motor (5) comprises the first motor output shaft (5-1), first motor filler opening (5-3), first motor return opening (5-6), first motor leakage hole (5-7), described first oil hydraulic motor (5) is installed on fuel tank (10) inner side, and be arranged on fuel tank left sideboard (10-2) by the first motor mounting screw (5-5), the first motor end face sealing gasket (5-2) is provided with between the end face of the first oil hydraulic motor (5) and fuel tank left sideboard (10-2), play seal action, prevent oil liquid leakage, described first motor output shaft (5-1) is provided with the 4th gear (5-4), described first motor return opening (5-6) is by return tube (11), first pipeline (11-1) is communicated with the work fluid in fuel tank (10), described first motor leakage hole (5-7) is communicated with the work fluid in the second motor leakage hole (6-7) and fuel tank (10) by the 9th pipeline (11-9), described first motor filler opening (5-6) is connected with the second motor filler opening (6-6) by the 8th pipeline (11-8), and be connected with the 5th pipeline (11-5),
Described second oil hydraulic motor (6) comprises the second motor output shaft (6-1), second motor filler opening (6-3), second motor return opening (6-6), second motor leakage hole (6-7), described second oil hydraulic motor (6) is installed on fuel tank (10) inner side, and be arranged on fuel tank left sideboard (10-2) by the second motor mounting screw (6-5), the second motor end face sealing gasket (6-2) is provided with between the end face of the second oil hydraulic motor (6) and fuel tank left sideboard (10-2), play seal action, prevent oil liquid leakage, described second motor output shaft (6-1) is provided with the 5th gear (6-4), described second motor return opening (6-6) is communicated with the work fluid in fuel tank (10) by the tenth pipeline (11-10), described second motor leakage hole (6-7) is communicated with the work fluid in the first motor leakage hole (5-7) and fuel tank (10) by the 9th pipeline (11-9), described second motor filler opening (6-6) is connected with the first motor filler opening (5-6) by the 8th pipeline (11-8), and be connected with the 5th pipeline (11-5), the right part of described hydraulic coupler output shaft (8) is provided with the 6th gear (7), the left part of hydraulic coupler output shaft (8) is connected with working machine by coupling, and described 6th gear (7) is meshed with the 4th gear (5-4) and the 5th gear (6-4) respectively,
When the first oil hydraulic motor (5) and the second oil hydraulic motor (6) work, drive the 6th gear (7) and hydraulic coupler output shaft (8) to produce respectively by the 4th gear (5-4) be meshed with the 6th gear (7) and the 5th gear (6-4) to rotate, hydraulic coupler output shaft (8) drives working machine to enter working state by coupling;
The filler opening of described proportional pressure control valve (9) is connected with the 5th pipeline (11-5) by the 6th pipeline (11-6), and be connected with the first motor filler opening (5-3), the second motor filler opening (6-3) with the first oil pump oil outlet (1-6), the second oil pump oil outlet (2-6) respectively by the 5th pipeline (11-5), the working pressure of hydraulic control Coupler, the oil outlet of described proportional pressure control valve (9) is communicated with the work fluid in fuel tank (10) by the 7th pipeline (11-7); Described fuel tank (10) internal storage has work fluid, the fuel tank right sideboard (10-1) of fuel tank (10) offers through hole, first oil pump input shaft (1-1) and the second oil pump input shaft (2-1) pass from the through hole fuel tank right sideboard (10-1) respectively, the fuel tank left sideboard (10-2) of fuel tank (10) offers through hole, and the first motor output shaft (5-1) and the second motor output shaft (6-1) pass from the through hole fuel tank left sideboard (10-2) respectively;
Described first speed probe (12) is installed on hydraulic coupler input shaft (4) place, detects the rotating speed of hydraulic coupler input shaft (4) in real time, is equivalent to the output speed detecting prime mover in real time; Described second speed probe (13) is installed on hydraulic coupler output shaft (8) place, detects the rotating speed of hydraulic coupler output shaft (8) in real time, is equivalent to the input speed of real-time testing machine.
2. a kind of hydraulic coupler according to claim 1, it is characterized in that: described first hydraulic-pressure pump (1) and the second hydraulic-pressure pump (2) are metering pump or variable displacement pump, when the first hydraulic-pressure pump (1) and the second hydraulic-pressure pump (2) are for variable displacement pump, realize the speed-regulating function of hydraulic coupler, the hydraulic-pressure pump quantity used in hydraulic coupler is more than two.
3. a kind of hydraulic coupler according to claim 1, it is characterized in that: described first oil hydraulic motor (5) and the second oil hydraulic motor (6) are fixed displacement motor or variable displacement motor, when the first oil hydraulic motor (5) and the second oil hydraulic motor (6) are for variable displacement motor, realize the speed-regulating function of hydraulic coupler, the oil hydraulic motor quantity used in hydraulic coupler is more than two.
4. a kind of hydraulic coupler according to claim 1, is characterized in that: described proportional pressure control valve (9) is manual tune relief valve.
CN201510419052.7A 2015-07-16 2015-07-16 Hydraulic coupler Pending CN105065616A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680313A (en) * 1971-01-14 1972-08-01 Emerson Electric Co Closed loop-open loop circuit for hydro-static transmissions
JPH06162767A (en) * 1993-08-11 1994-06-10 Seiko Epson Corp Electronic computer
CN1246587A (en) * 1998-08-31 2000-03-08 林颁千 Power transmission equipment
US6145312A (en) * 1998-12-30 2000-11-14 Hydro-Gear Limited Partnership Electro-mechanical bypass for hydrostatic transmission
CN1737363A (en) * 2005-03-08 2006-02-22 辽宁工程技术大学 Wind power generation hydraulic coupling control system and control method thereof
CN201980083U (en) * 2011-03-04 2011-09-21 冯福荣 Novel automatic hydraulic coupler system for automobiles
CN203876576U (en) * 2014-01-23 2014-10-15 长安大学 Single-axle hydraulic driving device of large mining self-unloading vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680313A (en) * 1971-01-14 1972-08-01 Emerson Electric Co Closed loop-open loop circuit for hydro-static transmissions
JPH06162767A (en) * 1993-08-11 1994-06-10 Seiko Epson Corp Electronic computer
CN1246587A (en) * 1998-08-31 2000-03-08 林颁千 Power transmission equipment
US6145312A (en) * 1998-12-30 2000-11-14 Hydro-Gear Limited Partnership Electro-mechanical bypass for hydrostatic transmission
CN1737363A (en) * 2005-03-08 2006-02-22 辽宁工程技术大学 Wind power generation hydraulic coupling control system and control method thereof
CN201980083U (en) * 2011-03-04 2011-09-21 冯福荣 Novel automatic hydraulic coupler system for automobiles
CN203876576U (en) * 2014-01-23 2014-10-15 长安大学 Single-axle hydraulic driving device of large mining self-unloading vehicle

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